Bug ID: 199718
Summary: [patch] urtwn(4): poor performance on rtl8188eu
Product: Base System
Severity: Affects Only Me
Created attachment 156016
r264912 brought initial support of rtl8188eu chips into FreeBSD, it was
noted by OpenBSD developers during porting efforts that it has bad performance
compared to other urtwn chips.
The problem seem to be in the way the driver initialize aggregation mode: in
native linux implementation USB aggregation is disabled if RX DMA one is
used (and it's actually used for 88 chips), in FreeBSD both methods are
Attached patch boosts performance for about 10 times for me.
Please review and commit if appropriate.
 - https://svnweb.freebsd.org/base?view=revision&revision=264912
 - https://github.com/lwfinger/rtl8188eu/blob/master/hal/usb_halinit.c#L524
 - https://github.com/lwfinger/rtl8188eu/blob/master/hal/usb_halinit.c#L95
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